C145530 XCMG GR2605 motor grader o-ring

Introduction

Technical Parameters

• Part Number: C145530 (145530)
• Brand: DCEC Cummins
• Type: Engine O-Ring
• Material: Nitrile rubber (NBR, mainstream specification), fluororubber (FKM, customized for high-temperature and high-pressure working conditions), rubber hardness 70~90 Shore A, with good oil resistance, high and low temperature resistance and anti-aging characteristics
• Fit Engines: Cummins ISB6.7, ISDe4.5, ISDe6.7, QSB6.7, B5.9 series
• Structure: Circular cross-section annular structure, one-piece molding without joints, smooth surface, good elasticity and extrusion rebound performance, mainly used for static sealing and a few for low-speed dynamic sealing
• Key Dimensions: Inner diameter φ25mm, wire diameter φ3.5mm (adapted to the corresponding sealing gap, in line with national standard specifications, 15%-25% compression rate should be maintained after installation to ensure sealing effect)
• Surface Treatment: No additional surface treatment, the rubber itself is subjected to anti-aging and oil-resistant modification treatment. Nitrile rubber temperature resistance range is -10℃~80℃, fluororubber temperature resistance range is -25℃~200℃, and the medium resistance performance is suitable for various engine oils and coolants
• Installation Method: Embedded installation, directly embedded into the sealing groove, achieving sealing by pressing and fitting with the sealing surface through its own elasticity. It is recommended to apply grease during installation to reduce friction and avoid installation damage. A retaining ring is required for high-pressure working conditions to prevent extrusion
• Cross Reference: 3901235, 4932301, C145531 (interchangeable, adapted to different sealing gaps and working conditions)
• Weight: Approximately 0.008kg per piece (slightly different according to size)
• Applicable Parts: Various static sealing parts such as engine pipeline interfaces, cylinder block and cylinder head joints, valve group sealing surfaces, pump body sealing places, oil pan interfaces, used to block leakage of various fluid media

Application Scenarios

• Vehicles: Medium and heavy-duty trucks and buses equipped with ISDe/ISB/QSB series engines, such as Dongfeng Kinland, Tianjin, Dali Shen, Auman, adapting to the needs of various engine sealing interfaces
• Construction Machinery: 18–26 ton loaders, graders, bulldozers, excavators (QSB6.7, B5.9 engines), forklifts, cranes and other construction equipment, adapting to hydraulic systems and engine sealing parts, and adapting to complex working conditions in engineering operations
• Conditions: Harsh environments such as heavy-duty long-distance, mining sites, high-altitude and cold areas, high temperature and high humidity, frequent starts and stops, high pressure, etc., can withstand corrosion of engine oil and coolant, adapt to high and low temperature cycles and vibration conditions, and avoid leakage caused by seal failure
• Location: The joint between engine cylinder block and cylinder head, the sealing groove of pipeline interface, the sealing surface of valve group, the sealing part of pump body, the interface between oil pan and cylinder block, the interface of cooling system and other gaps that need static sealing, evenly distributed according to sealing needs
• Functions: Fill the gap of the sealing surface, achieve close fit relying on rubber elasticity, prevent leakage of coolant, engine oil, fuel and other media, isolate external dust and moisture from entering, protect internal engine components from corrosion and pollution, adapt to static sealing and a few low-speed dynamic sealing scenarios, ensure the normal operation of various engine systems, extend the service life of the engine, and reduce the risk of equipment shutdown caused by seal failure